updates

pedi-foods/Sources/PediFoods/Views/Main/StoreDetailSupport.swift

@@ -1,7 +1,4 @@
 import SwiftUI
-#if canImport(UIKit)
-import UIKit
-#endif
 
 struct CategoryHeaderOffsetPreferenceKey: PreferenceKey {
     static let defaultValue: [String: CGFloat] = [:]
@@ -11,125 +8,41 @@ struct CategoryHeaderOffsetPreferenceKey: PreferenceKey {
     }
 }
 
+enum StoreDetailScrollCoordinateSpace {
+    static let name = "store-detail-scroll"
+}
+
+struct ScrollOffsetPreferenceKey: PreferenceKey {
+    static let defaultValue: CGFloat = 0
+
+    static func reduce(value: inout CGFloat, nextValue: () -> CGFloat) {
+        value = nextValue()
+    }
+}
+
 struct ScrollOffsetReader: View {
     @Binding var offsetY: CGFloat
 
     var body: some View {
-#if canImport(UIKit)
-        ScrollOffsetReaderRepresentable(offsetY: $offsetY)
-#else
         Color.clear
-#endif
+            .frame(height: 0)
+            .background(
+                GeometryReader { geometry in
+                    Color.clear.preference(
+                        key: ScrollOffsetPreferenceKey.self,
+                        value: geometry.frame(in: .named(StoreDetailScrollCoordinateSpace.name)).minY
+                    )
+                }
+            )
+            .onPreferenceChange(ScrollOffsetPreferenceKey.self) { minY in
+                let normalizedOffset = max(0, -minY)
+                if abs(offsetY - normalizedOffset) > 0.5 {
+                    offsetY = normalizedOffset
+                }
+            }
     }
 }
 
-#if canImport(UIKit)
-struct ScrollOffsetReaderRepresentable: UIViewRepresentable {
-    @Binding var offsetY: CGFloat
-
-    func makeUIView(context: Context) -> OffsetProbeView {
-        let view = OffsetProbeView()
-        view.onOffsetChanged = { value in
-            if offsetY != value {
-                offsetY = value
-            }
-        }
-        return view
-    }
-
-    func updateUIView(_ uiView: OffsetProbeView, context: Context) {
-        uiView.onOffsetChanged = { value in
-            if offsetY != value {
-                offsetY = value
-            }
-        }
-    }
-}
-
-final class OffsetProbeView: UIView {
-    var onOffsetChanged: ((CGFloat) -> Void)?
-    private var observation: NSKeyValueObservation?
-    private weak var observedScrollView: UIScrollView?
-
-    override func didMoveToWindow() {
-        super.didMoveToWindow()
-        attachIfNeeded()
-    }
-
-    override func didMoveToSuperview() {
-        super.didMoveToSuperview()
-        attachIfNeeded()
-    }
-
-    private func attachIfNeeded() {
-        guard observation == nil else { return }
-        guard observedScrollView == nil else { return }
-
-        if let scrollView = enclosingScrollView() ?? findScrollViewInWindow() {
-            observe(scrollView)
-            return
-        }
-
-        retryAttach()
-    }
-
-    private func observe(_ scrollView: UIScrollView) {
-        observedScrollView = scrollView
-        observation = scrollView.observe(\.contentOffset, options: [.new, .initial]) { [weak self, weak scrollView] _, change in
-            guard let self, let scrollView, let y = change.newValue?.y else { return }
-            let adjusted = max(0, y + scrollView.adjustedContentInset.top)
-            DispatchQueue.main.async {
-                self.onOffsetChanged?(adjusted)
-            }
-        }
-    }
-
-    private func retryAttach() {
-        DispatchQueue.main.asyncAfter(deadline: .now() + 0.05) { [weak self] in
-            self?.attachIfNeeded()
-        }
-    }
-
-    private func enclosingScrollView() -> UIScrollView? {
-        var current: UIView? = self
-        while let view = current {
-            if let scrollView = view as? UIScrollView {
-                return scrollView
-            }
-            current = view.superview
-        }
-        return nil
-    }
-
-    private func findScrollViewInWindow() -> UIScrollView? {
-        guard let window else { return nil }
-        let targetPoint = convert(CGPoint(x: bounds.midX, y: bounds.midY), to: window)
-        return findScrollView(in: window, containing: targetPoint)
-    }
-
-    private func findScrollView(in root: UIView, containing point: CGPoint) -> UIScrollView? {
-        for subview in root.subviews.reversed() {
-            if let match = findScrollView(in: subview, containing: point) {
-                return match
-            }
-        }
-
-        if let scrollView = root as? UIScrollView {
-            let rectInWindow = scrollView.convert(scrollView.bounds, to: window)
-            if rectInWindow.contains(point) {
-                return scrollView
-            }
-        }
-
-        return nil
-    }
-
-    deinit {
-        observation?.invalidate()
-    }
-}
-#endif
-
 struct AsyncStoreImage: View {
     let imageURL: String?